EXPLORE LIFE ON EARTH with the most visually stunning timeline of evolution ever created. The 6-foot fold-out timeline stretches back 4 billion years to the first signs of life in the seas. Witness the emergence of multi-cellular life, the colonization of the land, the reign of dinosaurs, mass extinctions, the migration of mammals, and finally, the story of humanity from the first two-legged hominids to a world populated by more than 7 billion people today. The Nature Timeline Wallbook also includes an easy-to-read chronicle that reports on more than forty seminal moments from the timeline in the style of a newspaper. Other features include a page of letters to the editor, a fifty-question quiz, and pocket magnifier. Perfect for 6-14 year olds but equally fascinating for all curious adults too.